|Publication number||US4972045 A|
|Application number||US 07/330,372|
|Publication date||Nov 20, 1990|
|Filing date||Mar 29, 1989|
|Priority date||Jan 17, 1989|
|Also published as||CA1291509C|
|Publication number||07330372, 330372, US 4972045 A, US 4972045A, US-A-4972045, US4972045 A, US4972045A|
|Original Assignee||Groupe Sodepro Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Referenced by (64), Classifications (9), Legal Events (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This invention relates to plastic material hardware for electrical systems.
The control of the operating lever of a conventional electrical switch being secured to the wall means a top-to-bottom or bottom-to-top pivotal movement thereof about a horizontal axis, i.e. a relatively complex movement which does not facilitate the manual operation of the switch. Moreover, the control lever-switch is usually of small dimensions, which does not facilitate the gripping thereof.
The goal of the invention is to facilitate the gripping and the control of the control lever of an electrical switch.
Another goal of the invention is to hide from view the switch lever without hampering the operation thereof.
Another object of the invention is to provide an array of interconnected modular covers used for electrical plugs as well as electrical switches, these various modules being interconnected by dovetailed connectors.
In accordance with the teachings of the invention, there is disclosed a member for facilitating the gripping and operating of the control lever of an electrical switch, comprising: a cover having a main body surrounding a central cavity, said cavity defining a small plate having a central opening through which extends said control lever and securing means for securing said small plate to said switch, the plane of said small plate being offset toward said switch with respect to said main body plane and defining upper and lower slits between the small plate and the main body; and a larger plate having a larger central projection, said projection defining a trough in which said control lever is engaged and two large abutting surfaces opposite said trough, said larger plate being positioned against said small plate and being engaged into said slits so as to be able to slide therebetween during pivotal action of said control lever.
Preferably, said control lever is generally cross-sectionally quadrangular, and further comprising a cap made from a semi-rigid material and having a cross-sectionally quadrangular through-bore being engageable by said control lever and a rounded external surface for cooperating with the walls of said projection within said trough during said sliding of said larger plate. Advantageously, said cap is made from polyethylene.
Profitably, said cover comprises a peripheral, interiorly edge section, whereby said small plate extends beyond the plane of the free edge of said cover rounded edge section.
It is envisioned that said securing means be screws, extending through said small plate, the screws each having a head, said heads being hidden by said movable small plate.
Preferably, said cover consists of three modules of which two side ones are interconnected by fastening means, so as to enable the combination of several covers by removal of the side modules of the intermediate covers. Said fastening means could be dovetailed connectors.
The invention also consists in an assembly of modular covers each used for covering an electrical plug or an electrical switch mounted into an electrical box secured to a wall, each cover having a main quadrangular body surrounding a central part, said part defining a small plate having an opening about which access to said electrical switch or electrical plug can be gained, securing means for securing said small plate to said electrical box; each of said modular covers defining two side edge sections having fastening means for enabling the interconnection in a substantially common plane of adjacent covers and the removable fastening thereof.
Again, said fastening means are preferably dovetailed connectors. There is also profitably further comprised two thin rectangular blocks, one of the side edge sections of which comprises second fastening means destined to cooperate with the first-mentioned fastening means of an adjacent cover and with the other three side edge sections being rounded, said two blocks being mounted on the two opposite side ends of said assembly of covers.
FIG. 1 is a perspective view of an assembly of electrical switch plate and of cover plate in accordance with a preferred embodiment of the invention;
FIG. 2 is a front elevational view of the assembly of plate of FIG. 1;
FIG. 3 is a side elevational view of the plate assembly of FIG. 1;
FIG. 4 is an end view of the assembly of FIG. 1;
FIG. 5 is a perspective view of the cover;
FIG. 6 is a longitudinal sectional view of the cover;
FIG. 7 is a partial view of the cover and of the switch lever showing the cap released from the switch lever;
FIG. 8 is a longitudinal section view of the assembly consisting of the electrical box, the electrical switch, the operating plate and of the cover;
FIG. 9 shows an elevational view of a modular assembly for electrical switch and electrical plug;
FIG. 10 shows an exploded view of the elements of FIG. 9;
FIG. 11, taken along line 11--11 of FIG. 10, shows a longitudinal sectional view of a wall with an electrical box, of an electrical plug covered with the cover of the invention;
FIG. 12 shows an elevational view of another modular system assembly, to wit for two electrical switches;
FIG. 13 shows a front, elevational, exploded view of the members of FIG. 12; and
FIG. 14 is a perspective, exploded view of the members of FIG. 5, showing how the side strips of the electrical plate are fixedly secured thereto by dovetailed connectors.
The electrical switch 14 (FIG. 8) or the electrical plug 16 (FIG. 11) are conventionally destined to be mounted into an electrical box 18, which is embedded and fixedly secured into a cavity made into a wall M. The switch 14 or the plug 16 have ears O and screws V engaging these ears O and which are screwed to the box 18. A switch plate, 20, covers the front of the box 18, and comprises a vertical, rectangular slit 22 for through passage of the control lever 24 of the electrical switch 14 and for the up-and-down pivotal action thereof about a horizontal axis, between an open and a closed position. The plate 20 comprises conical bores 21 engaged by dome-shaped-head screws 17, which screw into front threaded cavities 14a of the switch 14 as is well known, for securing the plate 20 against the front of the electrical box 18. The head 17a of each screw 17 is then exteriorly visible from the plate 20.
In accordance with the invention, there is provided a second plate 26, which flatly abuts against the first plate 20. The plate 26 comprises a projection 28 at the intermediate central section thereof, about the two thirds of its width but of small height, thus constituting a U laid on the side in cross-section. The projection 28 defines an upper wall 28a, a lower wall 28b, a front wall 28c, and two side walls 28d, as well as an interior trough 30 into which engages the control lever 24. Hence, the latter is hidden from the outside. The walls 28a, 28b and 28d are curved at their interior ends 32a, 32b so as to become integral to the main body of the plate 26. The free end 24a of the control lever 24 stops short of the front vertical wall 28c.
Therefore, by vertically sliding the plate 26 against the plate 20, the switch lever 24 is drawn into a pivotal movement about a horizontal axis, thanks to the frictional interaction between the lever and the walls 28a, 28b and their curved areas 32a, 32b. Indeed, in the closed position as shown in dotted lines in FIG. 8, i.e. when the control lever 24 is downwardly-forwardly extending, the free end 24a of the control lever abuts against the front section of the wall 28b whereas the rear section thereof abuts against the curved area 32a; on the other hand, in the open position, i.e. when the control lever 24 is upwardly and forwardly extending, as suggested in full lines in FIG. 8, the free end 24a abuts against the front section of the wall 28a whereas the rear section thereof abuts against the curved area 32b. It is understood that the walls 28a, 28b constitute abutting surfaces for the run of lever 24, whereas the curved surfaces 32a, 32b constitute stop members which limit the run of the plate 26 along the plate 20.
A cover 34 is made integral to the plate 20, which defines the bottom of a central, rectangular plate 36 made into the cover 34. Indeed, the two elongated side edges of the plate 20 are integral to the rear edge 36b of the two side walls 36a of the cavity 36 of the cover 34. Thus, the plane of the plate 20 is rearwardly offset, i.e. interiorly with respect to the plane of the cover 34. However, the cavity 36 comprises upper and lower slits 37a, 37b, within a common vertical plane and being defined between the top and bottom edges 20a and 20b of the plate 20 (which is rearwardly offset as already detailed) and the corresponding edges 36c, 36d of the cover 34. The plate 26 is engaged into the slits 37a, 37b; it is long enough so as not to project beyond these slits (see FIG. 8). Thus, the plate 26 may slide with said common vertical plane of the slits 37a, 37b, is guided by same and by the side walls 36a, is retained by the cover 34 and hides not only the head 17a of each securing screw 17 for securing the cover to the switch 14 but also the control lever 24.
The cover 34 also comprises peripheral edges 38 which are interiorly rounded at right angle. The side sections 34a of the plate 34 are rearwardly offset and may be made releasable in two rectangular sections, see FIGS. 9 to 14.
Advantageously, there is provided in accordance with the invention the addition of a cap 40, having a rounded external surface 42 but having a cross-sectionally quadrangular through-bore 44, engaged by the control lever 24 and extending within the internal trough of the projection 30. The cap 40 is made from a flexible material, e.g. polyethylene, and facilitates the interaction of walls 28a, 28b with the lever during pivotal motion of the latter, as well as the dampening of the limit displacements of the switch lever. The block or projection 28 extends forwardly of plate 26 and is large, and its upper wall 28a and lower wall 28b are flat and horizontal.
The projection 28 thus facilitates the gripping as well as the control of the lever 24, since it requires for its operation a vertical push rather than a pivotal bias.
In accordance with the prior technique, the lever 24 is as such quite small, wherein the gripping thereof is not facilitated, and the displacement thereof is made by pivotal action, which constitutes a relatively complex motion compared to a simple linear motion.
FIGS. 9 to 14 show how the covers 34 and 35 of an electrical switch 14 and of an electrical plug, respectively, have side sections 34a which are releasable and which may be directly interconnected so that the same covers may be used with electrical switches and/or plugs and mounted side-by-side in a single electrical box as well as with switches or plugs installed in individual boxes.
It is to be noted that the individual and conventional covers or wall plates, are too large to be used with an electrical box having several switches or plugs in side-by-side fashion. Each cover 34, 35 has a width equal to the standard distance center-to-center between two plugs or switches installed side-by-side in a single box. A cover 34 or 35 provided with its two sides 34a has a width large enough to cover an individual box.
The constituting modules may be interconnected by dovetailed connectors, 46, see FIG. 14. These types of connectors have a male part 46a, of trapezoidal shape in side view, and a female part 46b, constituted by a rectangular-shaped notch. Each part 34,35, and 34a comprises side walls 48; the male parts 46a project from the side walls 48, and the notches 46b are made in the walls 48 and have inclined edges to follow the contour of the male part 46a. Each cover or plate 34 and 35 is provided on each side thereof with a male part 46a and with a female notch 46b positioned near the ends of the covers and being relatively inverted. Each side strip 34a has a male part and a female part. Each side strip 34a may thus be hooked to either one or to both sides of a cover 34 or 35 and these covers may be directly hooked to each other. Thus, with three modules, one may obtain all the usual combinations. The hooking action is made by pivoting one part with respect to the other following the arrows shown in FIG. 14. The dovetailed connectors 46a frictionally engage the notches 46b.
The interior or rear edge 38a of the peripheral curved portion 38 (FIG. 6) of the cover 34 defines a common vertical plane which is rearwardly offset relative to the plane within which extends the plate 20 (integral to the edges 36a, 36b of the cover 34). Therefore, the rear edge 38a abuts against the wall M (FIG. 11) even though the switch 14 projects slightly outwardly from that wall M.
Advantageously, the plates 26 and the covers 34 and 35 are made from a rigid plastic material, by molding.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US801536 *||Jan 19, 1905||Oct 10, 1905||Norman Marshall||Face-plate for electric switches.|
|US1717871 *||Dec 4, 1922||Jun 18, 1929||Connecticut Electric Mfg Compa||Sectional gang plate|
|US2212145 *||Jun 20, 1939||Aug 20, 1940||Monowatt Electric Corp||Faceplate|
|US2571837 *||Jun 15, 1948||Oct 16, 1951||Coles Jacob G||Electric switch operating device|
|US4105884 *||Apr 4, 1977||Aug 8, 1978||Damsky Arnold M||Electrical toggle switch lever extender|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5248863 *||Oct 1, 1991||Sep 28, 1993||Ncr Corporation||Switch actuator mechanism|
|US5306957 *||Jul 10, 1992||Apr 26, 1994||Ofer Nissim||Switch lever operating device with automatic timer|
|US5696350 *||Jan 18, 1995||Dec 9, 1997||Leviton Manufacturing Co., Inc.||Interchangeable sectional wallplates|
|US5700978 *||Jan 25, 1996||Dec 23, 1997||Pass & Seymour, Inc.||Snap-together wall plates for ganged electrical device installations|
|US5806665 *||Aug 6, 1997||Sep 15, 1998||American Tack & Hardware Co., Inc.||Arcuate switch actuator|
|US5824948 *||Sep 20, 1996||Oct 20, 1998||Berg; Gordon||Safety shield|
|US5835980 *||Aug 6, 1997||Nov 10, 1998||American Tack & Hardware Co, Inc.||Receptacle plate|
|US5900584 *||May 6, 1997||May 4, 1999||Cady; James L.||Enlarged wall switch plate|
|US5998747 *||May 5, 1998||Dec 7, 1999||Kelso; Francis Fredrick||Switch plate assembly|
|US6008458 *||Mar 30, 1998||Dec 28, 1999||C & K Components, Inc.||Sealed slide switch|
|US6046416 *||Aug 4, 1998||Apr 4, 2000||King Of Fans, Inc.||Cover for ceiling fan reversing switch|
|US6426472||Dec 14, 2000||Jul 30, 2002||David N. Carlson||Pneumatic switch operator|
|US6511343 *||Jul 12, 1999||Jan 28, 2003||Taymac Corporation||Receptacle-mounted cover plate to hide electrical socket face|
|US6680438||Jan 16, 2003||Jan 20, 2004||Robert W. Campbell||Decorative electrical outlet and switch plate cover|
|US6720512 *||Mar 24, 2003||Apr 13, 2004||Dan Rothbauer||Surface mount switch plate|
|US6761582||Oct 29, 2002||Jul 13, 2004||Michael J. Shotey||Receptacle-mounted cover plate to hide electrical socket face|
|US6909060||Jan 27, 2003||Jun 21, 2005||Michael Shotey||Cover for electrical switch|
|US6974925 *||Dec 23, 2003||Dec 13, 2005||Jonathan Whitman||Sabbath switch cover for appliances|
|US6977342||Oct 15, 2004||Dec 20, 2005||Maltby Edgar W||Receptacle-mounted cover plate to hide electrical socket face|
|US7067738||May 31, 2005||Jun 27, 2006||Taymac Corporation||Convertible electrical device cover and method for installing the same|
|US7074078||May 25, 2004||Jul 11, 2006||Michael J. Shotey||Receptacle-mounted cover plate to hide electrical socket face|
|US7078618||May 18, 2005||Jul 18, 2006||Thomas & Betts International, Inc.||Wall recessed outlet box assembly|
|US7119278||Dec 6, 2005||Oct 10, 2006||Taymac Corporation||Receptacle-mounted cover plate to hide electrical socket face|
|US7122753||Mar 28, 2005||Oct 17, 2006||Ralph Kenneth Davis||Cover plate with flush slide actuator for electrical devices|
|US7214878 *||Aug 17, 2005||May 8, 2007||Thomas & Betts International, Inc.||Wall plate assembly|
|US7230184||Jun 27, 2006||Jun 12, 2007||Taymac Corporation||Universal outlet cover|
|US7247794||Mar 11, 2005||Jul 24, 2007||Timothy M. Johnson||Drip-proof switch cover|
|US7271339||Aug 9, 2006||Sep 18, 2007||Thomas & Betts International, Inc.||Wall plate assembly|
|US7557308||Jul 12, 2006||Jul 7, 2009||Thomas & Betts International, Inc.||Wall recessed outlet box assembly|
|US7576285 *||Feb 13, 2007||Aug 18, 2009||Pass & Seymour, Inc.||Modular wall plate for ganging commercial dimmers|
|US7595446||Feb 27, 2007||Sep 29, 2009||The Lamson & Sessions Co.||Wall mounted electrical apparatus|
|US7667145||Jul 31, 2007||Feb 23, 2010||Thomas & Belts International, Inc.||Recessed outlet box assembly|
|US7718893||Jul 21, 2008||May 18, 2010||Protectconnect||Adjustable plaster ring cover|
|US7762838||Apr 21, 2008||Jul 27, 2010||Protectconnect||Safety module electrical distribution system|
|US7939756||Sep 4, 2008||May 10, 2011||Liberty Hardware Mfg. Corp.||Modular electrical wall cover system|
|US8028408||May 14, 2010||Oct 4, 2011||Protectconnect||Method of manufacturing a wiring module|
|US8049107||Aug 28, 2008||Nov 1, 2011||Thomas & Betts International, Inc.||Wall plate bracket|
|US8105107||May 5, 2008||Jan 31, 2012||Protectconnect, Inc.||Safety electrical outlet and switch system|
|US8388371||Jan 27, 2012||Mar 5, 2013||Protectconnect, Inc.||Safety electrical outlet and switch system|
|US8420956 *||Apr 27, 2010||Apr 16, 2013||Leviton Manufacturing Co., Inc.||Electrical device mounting adapter|
|US8678856||Mar 1, 2013||Mar 25, 2014||Protectconnect||Safety electrical outlet and switch system|
|US8910377||Oct 3, 2011||Dec 16, 2014||Protectconnect||Method of manufacturing a wiring module|
|US8921714||Dec 5, 2011||Dec 30, 2014||Pass & Seymour, Inc.||Modular device housing assembly|
|US20040214471 *||May 25, 2004||Oct 28, 2004||Shotey Michael J.||Receptacle-mounted cover plate to hide electrical socket face|
|US20050133353 *||Dec 23, 2003||Jun 23, 2005||Jonathan Whitman||Sabbath Switch Cover for appliances|
|US20050260881 *||May 18, 2005||Nov 24, 2005||Thomas & Betts International, Inc.||Wall recessed outlet box assembly|
|US20060037774 *||Aug 17, 2005||Feb 23, 2006||Dinh Cong T||Wall plate assembly|
|US20060137834 *||Jun 4, 2003||Jun 29, 2006||Michael Hormann||Operating unit|
|US20060266540 *||Aug 9, 2006||Nov 30, 2006||Thomas & Betts International, Inc.||Wall plate assembly|
|US20080202787 *||Feb 27, 2007||Aug 28, 2008||Turcovsky Gregory D||Wall mounted electrical apparatus|
|US20090021895 *||Jul 21, 2008||Jan 22, 2009||Protectconnect, Inc.||Adjustable plaster ring with attached clip|
|US20100051309 *||Aug 28, 2008||Mar 4, 2010||Thomas & Betts International, Inc.||Wall plate bracket|
|US20100051312 *||Sep 4, 2008||Mar 4, 2010||James Daniels||Modular electrical wall cover system|
|US20110073347 *||Sep 30, 2009||Mar 31, 2011||Neil Edward Boa||Electrical cover|
|US20110259634 *||Apr 27, 2010||Oct 27, 2011||Leviton Manufacturing Co., Inc.||Electrical device mounting adapter|
|US20150279243 *||Feb 18, 2015||Oct 1, 2015||William Willes||Paint Identification Label|
|USD772177 *||Feb 10, 2014||Nov 22, 2016||Abl Ip Holding Llp||Button station|
|USRE40600||Dec 12, 2002||Dec 9, 2008||Taymac Corporation||Receptacle-mounted cover plate|
|USRE41661||Apr 10, 2006||Sep 14, 2010||Thomas & Betts International, Inc.||Electrical box assembly|
|USRE45430||Oct 10, 2013||Mar 24, 2015||Protectconnect||Universal electrical wiring component|
|CN100459341C||Jun 4, 2003||Feb 4, 2009||马兰特克传动及控制技术股份有限两合公司||Operating unit|
|EP0762452A2 *||Aug 24, 1996||Mar 12, 1997||ABB PATENT GmbH||Rocker keyswitch|
|EP0948008A2 *||Jul 1, 1998||Oct 6, 1999||C & K Components, Inc.||Sealed slide switch|
|WO2004068667A1 *||Jun 4, 2003||Aug 12, 2004||Marantec Antriebs- Und Steuerungstechnik Gmbh & Co. Kg||Operating unit|
|U.S. Classification||174/66, D13/156, 200/330|
|International Classification||H01H15/10, H01H23/14|
|Cooperative Classification||H01H15/10, H01H23/148|
|European Classification||H01H15/10, H01H23/14E|
|Dec 28, 1989||AS||Assignment|
Owner name: GROUPE SODEPRO INC., CANADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PRIMEAU, MARIO;REEL/FRAME:005203/0059
Effective date: 19890802
|May 5, 1994||FPAY||Fee payment|
Year of fee payment: 4
|May 20, 1998||FPAY||Fee payment|
Year of fee payment: 8
|Jun 4, 2002||REMI||Maintenance fee reminder mailed|
|Nov 20, 2002||LAPS||Lapse for failure to pay maintenance fees|
|Jan 14, 2003||FP||Expired due to failure to pay maintenance fee|
Effective date: 20021120